baber/WOPTO huggingface dataset:
Patent GB-1396299-A (GB)
Title: Reciprocating pumps and connectors therefor
IPC: F16K15/04
Filed: 1971-08-03
Abstract: 1396299 Pipe couplings; valves D J WALTERS 27 July 1972 [3 Aug 1971] 36478/71 Headings F2G and F2V In a valve connector for a pump, such as a foot pump for motor vehicle tyres, a plastics spigot end 22 of a ball recess is formed with a slot 34, the edges of which are arranged to spring apart and together again, as ball 36 is inserted into the recess. The ball 36 may be of steel or plastics. An integral screw-threaded spigot portion (18, Fig. 2, not shown) is provided.
Patent GB-1517711-A (GB)
Title: Self-advancing mine roof supports
IPC: E21D23/14
Filed: 1974-08-20
Abstract: 1517711 Control of self advancing roof supports GULLICK DOBSON Ltd 17 June 1975 [20 Aug 1974] 36490/74 Heading E1P A self-advancing roof support having means for controlling the advance thereof comprises, a manually operable control valve 10 and an automatic sequence control valve 11 operable in response to a control signal from a position remote from the support, each control valve controlling the advancing steps required; isolating valves 13 to 17 enabling either one of the control valves to effect operation of the support independently of the other; and a control signal generator (51), Fig. 2 (not shown), manually operable to supply a control signal to the automatic sequence valve of another support. The shuttle isolating valves 13 to 17 in the automatic control valve 11 allow the overide of the automatic system by the manual control valve 10. Remote automatic operation is initiated by a hydraulic signal from an adjacent support applied to ports 18 or 22 of pilot valve 9. Non return valves 36, 37, 38 are opened by strikers 33, 34, 35 to lower props 39, 40, 41 and ram 43 is retracted and, when fully retracted, operates a striker valve 44 which initiates the automatic re-setting of the props 39, 40, 41 via the non return valves 36, 37, 38. An outlet line 53 may be provided to initiate automatic operation of an adjacent support. The manual control signal generator (51), Fig. 2 (not shown) comprises spring-loaded pistons and cylinders controlled by a 'dead man's handle' (52), and can be used to initiate the automatic advance of supports on either side of the support on which it is mounted. For Figure see next column
Patent GB-1185839-A (GB)
Title: Improvements in or relating to Devices for Optically Scanning Microscopic Objects
IPC: G01N21/59
Filed: 1967-08-09
Abstract: 1,185,839. Scanning apparatus. ERNST LEITZ G.m.b.H. 9 Aug., 1967 [10 Aug., 1966; 11 Jan., 1967], No. 36558/67. Heading H4F. [Also in Divisions G1 and G2] A device for optically scanning a stationary microscopic object comprises means for producing an illuminating beam directed on to the stationary object, means for scanning the stationary object in two dimensions by the illuminating beam and by a resulting viewing beam, so that the viewing beam scans the stationary object synchronously with the illuminating beam, the scanning means interacting with the path of the illuminating beam to the stationary object and interacting with the path of the viewing beam between the stationary object and a photo-electric device so that the photoelectric device views by the viewing beam only that part of the stationary object which is illuminated by the illuminating beam, and a microscope objective lens in the path of the viewing beam between the stationary object and the scanning means. In an embodiment an illuminating beam from a lamp 21 is reflected by one surface of a mirror 23, which mirror vibrates in a direction 24 and rotates about an axis 24a, and is focused on an object in a plane 27 by an optical system 34, a mirror 2, a semi-transparent mirror 35 and a microscope objective 28; the light reflected by the object through the objective 28 and semitransparent mirror 35 is focused on a photoelectric device 45 by an optical system 41 and the surface of mirror 23. The apparatus may be prevented from scanning beyond the boundaries of the object by reflecting a light beam from a collimator 46 off the rear surface of mirror 23 through a screen 47 bearing an opaque outline of the object, into a photo-electric device 49; when the beam impinges on the outline on the screen 47, no signal is received by the photoelectric device 49 which causes the movements of mirror 23 to be reversed. The outline may be drawn on screen 47 by rotating it into the path of photo-cell 45 and drawing around the optical image produced thereon the image being viewed through a magnifier (52). In alternative embodiments, the light transmitted by the object is scanned the scannings are effected by a pair of Nipkow discs or screen 47 is replaced by a diaphragm.
Patent GB-916041-A (GB)
Title: A method and a device for making a connection at the overlapping ends of a metal strap tied around a container, box, package or the like
IPC: B65B13/30
Filed: 1960-10-26
Abstract: 916,041. Seals &c. VEBEENIGDE METAALVERPAKKING MAATSCHAPPIJ N.V. Oct. 25, 1960 [Dec. 4, 1959], No. 36649/60. Class 146 (2). The overlapping ends of a metal strap tied around a container 1 are joined by making incisions a and bending down the tongues formed on to the face of the strap by means of dogs 8 of jaws 7 of a connecting mechanism. An additional dog 9 having only a single cutting edge makes an incision b near where the end lip of the strap is formed as a knife 10 severs the straps. When the knife 10 rises it co-operates with an intermediate knife 12 and a counter plate 13 not only to sever the band to form the lip but to. force its sides c adjacent the incision b down against the lip to hold it against the remaining strap.
Patent GB-1475713-A (GB)
Title: Method of and means for tapping metallic melts
IPC: C21C5/52
Filed: 1974-08-21
Abstract: 1475713 Tapping molten metals ASEA AB 21 Aug 1974 [23 Aug 1973] 36699/74 Heading F4B Molten metal is tapped from a tiltable vessel 11 Fig. 5 of the kind having at least one channeltype induction unit 12 and a conduit 18 for feeding inert gas e.g. argon to an opening 17 which is above the melt when the container is tilted to the tapping position, and a closable pouring hole 14 through which, during tapping, the flow of metal is controlled by regulating the pressure of the inert gas supplied through conduit 18, the temperature of the melt being controlled by the induction unit or units. The vessel 11 is a converter in which the metal is first purified. The vessel is charged in an approximately upright position the top 13 being removed for the purpose. The top 13 is replaced, Fig. 4, and refining agent is added through conduit 19. The metal is maintained at the desired temperature by the induction unit 12, the heat causing stirring of the added materials. Inert or reducing gas is introduced into the channel of the induction unit to cause circulation of the melt and cleaning of the channel walls. The taphole 14 may be closed by a metal plate or by a sliding valve. The rate of tapping of the metal or the level of molten metal in the casting apparatus is measured and used to control valves regulating the pressure of inert gas supplied over the surface of the metal so that the tapping rate is maintained at a desired level. Similarly the temperature of the metal in the converter or in the casting apparatus is measured and used to control the supply of energy to the induction unit. After tapping a reservoir of metal remains in the channel of the induction unit. The converter is then returned to the upright position for recharging, being again filled with argon to protect the lining.
Patent GB-1119668-A (GB)
Title: Method of testing microbial sensitivity to drugs
IPC: C12Q1/18
Filed: 1965-08-26
Abstract: A method of testing microbial sensitivity to drug involves laying a measured layer of culture medium over a measured quantity of the drug (or mixture of drugs), allowing the drug to attain a uniform concentration in the plane part of the free surface of the medium, depositing a microbial culture on the solid medium surface and recording any growth after a suitable time and/or comparing it with any growth occurring on a comparable control layer of culture medium prepared without the drug.  The several embodiments include the following features:  (1) Discs of filter paper containing measured quantities of drug are each placed at the bottom of a flat-bottomed test-tube and are covered by a small, measured amount of culture medium.  (2) There is employed a disposable Petri dish with several cylindrical cups sealed to its bottom into which the drug discs are placed.  A measured volume of agar is dispensed into each cup, and the names and concentrations of the drugs are printed on a mat of absorbent blotting paper covering the bottom of the dish and surrounding the cups.  The dish is vacuum sealed into a dark plastic bag, which is opened for use when required.  According to a modification, solutions of drugs are evaporated to dryness in conical depressions in a sterile plastics plate, a trace of glycerol being added to avoid any dusting of the dried drug, and for use the depressions are filled with liquid culture medium containing the micro-organism. Reference is made to the higher diffusibility of penicillin than polymyxin.
Patent GB-1326155-A (GB)
Title: Static pump type reactor gas loop
IPC: G21C15/25
Filed: 1971-08-05
Abstract: 1326155 Reactors COMMISSARIAT A 'LENERGIE ATOMIQUE 5 Aug 1971 [6 Aug 1970] 36922/71 Heading G6C In an irradiation system, in a nuclear reactor, the specimen under test, for example, a fuel element, is cooled by a flow of helium gas circulated by an injector pump. The fuel element, 4, is mounted within the casing 9 and subjected to the gas flow F 6 , F 4 , from the injector, 11. From the element, the gas flow, F 5 , passes into the mixer, 12, into the high temperature heat exchanger 15, 16, around the low temperature heat exchanger coil 17 to the outlet 24 and a thid flow passes to the outlet, 23, between the casing 6 and tube 19.
Patent GB-830253-A (GB)
Title: Improvements in or relating to the production of mechanical power from thermonuclearreactors
Inventor: CARRUTHERS ROBERT
IPC: H05H1/12
Filed: 1956-12-03
Abstract: 830,253. Nuclear fusion reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Nov. 29, 1957 [Dec. 3, 1956], No. 36950/56. Class 39(4). Apparatus for the production of mechanical power comprises a thermonuclear reactor including a transformer and a vessel for containing a gas, at least one alternator adapted to energise a primary winding of the transformer whereby a constricted ring discharge current sufficient to retain reaction nuclei within the discharge may be produced in gas in the vessel, flywheel means coupled to the shaft of the alternator, and switch means whereby the alternator may be periodically connected to the primary winding. In Fig. 1 alernators 1 and 2 are connected by a shaft carrying a flywheel 3 and a starter motor 10. Alternator 1 supplies output power whilst the output of alternator 2 is connected through a switch 8, controlled by a control unit 9, to the primary winding 6 of a transformer, the secondary of which is constituted by a discharge in the reactor vessel 7. In operation the alternators are run up to starting speed by the motor 10 with the switch 8 open, and then the switch 8 is operated, for example about once in every hundred cycles, to connect the alternator 2 for part of a cycle to the transformer ; as a result of the thermonuclear reactions the alternator 2 receives a driving kick every time the switch is operated. The transformer may have several primary windings each connected to a system as shown in Fig. 1. Several alternators 2 each driving an alternator 1 may be connected through their respective switches to the transformer winding 6, the switches being operated in sequence. Specification 830,252 is referred to.
Patent GB-907673-A (GB)
Title: Production of yarns of polymers based on acrylonitrile
IPC: D01F6/18
Filed: 1960-10-27
Abstract: Filamentary yarns and tows of polyacrylonitrile, free from contained solvent, are drawn in a medium comprising the vapour of n-amyl alcohol, isoamyl alcohol, or mixtures thereof, n-amyl acetate, isoamyl acetate, or mixtures thereof, or of cyclohexanone.  The term "polyacrylonitrile" includes polymers, copolymers, grafted polymers and mixtures thereof containing 85-100% polyacrylonitrile and up to 15% of one or more copolymerizable ethylenic compounds.  The vapour may be maintained at a temperature close to the boiling point of the liquid of which it is the vapour, usually slightly below the boiling point, so that drawing may be effected in the vapour of the boiling liquid. In Examples (1), (3), a polyacrylonitrile untwisted yarn is drawn up to 16,5x in cyclohexanone vapour at 153 DEG C., (2) a yarn of filaments of 85% polyacrylonitrile and 15% polyvinyl acetate twisted 50 turns per metre is drawn 11,4x in amyl alcohol vapour at 131 DEG C., (4) a tow of filaments of a copolymer of 92% acrylonitrile and 8% methyl methacrylate is drawn in saturated isoamyl acetate vapour at 145 DEG C.  The process of the invention enables filaments to be drawn to a higher draw ratio than is possible by conventional methods, and for a given draw ratio the process yields filaments of higher tenacity.
Patent GB-1276523-A (GB)
Title: Liquid crystal display assembly having independent contrast and speed of response controls
IPC: H04N3/12
Filed: 1969-07-23
Abstract: 1276523 Modulating light RCA CORPORATION 23 July 1969 [31 July 1968] 37116/69 Heading H4F [Also in Division G5] In a display device wherein light signals are modulated by varying the turbidity of a nematic crystal layer by applying an electrical signal thereto, as in Specification 1,167,486, half-tone effects are obtained by modulating the frequency of the electrical signal. The amplitude of the signal determines the response time. The apparatus described is substantially the same as that in said Specification.
Patent GB-1381444-A (GB)
Title: Toothpaste
IPC: A61K/
Filed: 1973-08-06
Abstract: 1381444 Speckled toothpastes BLENDAXWERKE R SCHNEIDER & CO 6 Aug 1973 [4 Aug 1972] 37161/73 Heading A5B Speckled toothpastes comprise a basic toothpaste formulation and particles colour-contrasting with the colour of the formulation, the particles consisting of microcapsules having a transparent shell material (e.g. gelatin, polyvinyl alcohol or cellulose derivatives such as hydroxyalkylcellulose) encapsulating a suspension or solution of colouring matter in a physiologically inert solvent such as paraffin oil. The microcapsules may additionally contain aroma and taste agents. The basic toothpaste formulation may contain a polishing agent, a binding or thickening agent, a humectant, water, enzymes, fluorine compounds, taste improvers, preserving agents and surface active agents.
Patent GB-1262230-A (GB)
Title: Improvements in or relating to pallets for supporting material during heat treatment thereof
IPC: F27B21/08
Filed: 1970-08-03
Abstract: 1,262,230. Sintering grates. KOPPERS CO., Inc. 3 Aug., 1970 [28 Aug., 1969], No. 37440/70. Heading F4B. The pallets of a sintering machine are each formed from grate bars 19 supported between transverse ribs 13. Heat shields 33, mounted on upstanding pads 31 integral with or secured to the head portions 25 of the ribs, are interposed between the bars 19 and the rib head portions 25 to reduce heat transfer therebetween. The rib head portions and the heat shields may be rectangular or circular (Fig. 4, not shown) in cross-section. The heat shields may be replaced by being slid off the rib head portions after the grate bars and the pallet side plate (not shown). have been removed. Reference has been directed by the Comptroller to Specification 846,064.
Patent GB-1270996-A (GB)
Title: Method and apparatus for the preservation of biological substances
IPC: A61J1/00
Filed: 1969-07-25
Abstract: 1,270,996. Preserving biological specimens. REDECO Inc. 25 July, 1969 [8 Aug., 1968], No. 37587/69. Heading A2D. Biological substances, particularly blood, are stored by precompressing the substance, i.e. mechanically applying a positive pressure at any temperature above the freezing point of the substance being worked upon, to a pressure dependent upon a predetermined temperature to be attained during the method, and at a rate sufficiently slow to avoid damaging pressure transients, and reducing the temperature of the substance to the final storage temperature while maintaining its volume substantially constant. The precompression may be performed a plurality of times, each predetermined temperature being lower than the previous, the last being a storage temperature. The process may be carried out in the apparatus shown in Fig. 2 which comprises a pressure gauge 13, storage vessel 21 and piston 14. Blood for example, is introduced into the vessel through apertures 15, 15' and the piston is then positioned on the surface of the blood. Precompression is achieved by screwing in the cap 17. Predetermined temperatures are preferably attained by placing vessel 21 in an appropriate constant temperature bath.
Patent GB-882753-A (GB)
Title: Solvent extraction apparatus and process
Inventor: UPTON CHARLES BUTTERFIELD
IPC: C11B1/10
Filed: 1959-11-05
Abstract: Oils and fats are continuously extracted by solvents in an apparatus which, as shown in Fig. 1, comprises a housing 7 in which are rigidly mounted a series of containers 10-21 each having a perforate base 25 hinged along a radial edge; at each end of the opposite radial edges are mounted rollers 30 and 31.  Centrally disposed within the housing 7 is a rotatable shaft 37 to which are secured filling spout 55, spray-pipes 70 having nozzles 71, a hopper 60, a series of collecting pans 73-77, of which only one (75) is shown in Fig. 1, and a screw conveyer 62 positioned beneath hopper 60.  These parts are rotated by means of rollers 47 which roll on annular flange 48 and are driven by means of the annular rack and pinion drive 50 and 51.  Rollers 30 and 31 run on rotating annular flanges 32 and 33. <PICT:0882753/III/1> <PICT:0882753/III/2> <PICT:0882753/III/3> <PICT:0882753/III/4> These flanges have drop-away portions 68 and 69 in the sector occupied by hopper 60, so that when a container approaches the hopper, the rollers 30 and 31 run down the drop-away portions 68 and hinged base 25 drops about its hinged edge, so depositing the contents of the container into the hopper, whence the material is passed by conveyer 62 to discharge spout 63, and so by tube 64 to exit conveyer 65.  On further rotation, the rollers 30 and 31 run up the drop-away portion 69 so that base 25 swings closed.  The raw material to be extracted is fed to compartment 11 by means of pipe 55 (see Fig. 2, the direction of rotation being anticlockwise), where it is sprayed with concentrated miscella. This miscella passes through the material and finds its way to collecting pan 77 (see Fig. 3) and thence, by pipe 78, to circular trough 81.  Each of the other collecting pans 73-76 is similarly connected to a circular trough, i.e. 82-84, which each drain into a receptacle which is divided into quadrants, i.e. 80a-80d (see Fig. 4).  The liquid collected by each collecting receptacle 80a-80d, is pumped by pumps 86 and pipes 88 to troughs 89 (see Fig. 1) which feed spray nozzles 71, and which are connected in such a way that the raw material passes in countercurrent with the miscella, i.e. fresh raw material in compartment 11 is washed with concentrated miscella.  This concentrated miscella containing fines is then sprayed into comparment 12 where the fines are filtered out by the compacted raw material, while in compartment 18 the almost exhausted raw material is treated with fresh solvent.  The material in compartments 19 and 20 is allowed to drain, before being precipitated into hopper 60 as the carriage rotates.  The concentrated miscella from compartment 12 is run off to an evaporation system to recover the extract.
Patent GB-321104-A (GB)
Title: Improvements in or relating to picture and the like telegraph systems
IPC: H04N3/30
Filed: 1928-12-22
Abstract: 321,104. Carpmael, A., (Telefunken Ges. fiir Drahtlose Telegraphie). Dec. 22, 1928. Copying-telegraphs.-Apparatus for transmitting or receiving pictures, in which sections which are not adjacent are recorded successively, comprises successively operating pick-up or recording devices, or a single recording or pick-up device traversing consecutive sections of a band or strip picture. The pictures lines may be so arranged that when recorded, they overlap, forming a more definite picture. When the recording devices are light-sensitive cells, the frequency of operation of the light imposes a frequency on the cell which can be utilized in known fashion for controlling synchronization of transmitter with receiver. In Fig. 1, light sources 8, 9, 10 illuminate by lens 7 points 14, 15 16 on the picture 2 and the reflected light is gathered by an annular lightsensitive cell 6. A screen 13 consisting for example of a slotted disc, ensures that only one source is in operation for each rotation of the drum 1 carrying the picture. The drum 1 is moved forward after each rotation and each source in turn reproduces one picture line. The receiving arrangement shown in Fig. 2 has a photographic strip 18, moving over rollers 19 synchronously with a similar strip in the transmitter. The recording points of light 14, 15, 16 are brought successively into operation by means of a screen 17. The movements of the points of light at transmitter and receiver are synchronized in a known manner. Figs. 3, 4 illustrate arrangements where one pick-up or recording device only is used. In Fig. 3 the film moves over rollers as shown while the recording device moves across the sections of the film as indicated by the long arrow. In Fig. 4, the point of light moves round the axis of cylinder 22 on which the film 23 is wound in such a way that the point of light traverses the film obliquely, the reflected light being gathered by the light-sensitive cell 33. The film 23 is drawn over rollers 25 which displace it laterally so as to divide it intosections equivalent to those shown in Fig. 3. In all forms, a carrier frequency for the picture signal may be introduced by rotating a slotted wheel 12, Fig. 1, interrupting the light rapidly.
Patent GB-864204-A (GB)
Title: Caprolactam polymerization
IPC: C08G69/16
Filed: 1958-11-27
Abstract: 864,204. Poly #-caprolactam. ALLIED CHEMICAL CORPORATION. Nov. 27, 1958 [Jan. 28, 1958], No. 38365/58. Class 2(5). #-caprolactam is converted to a polymer having a relative viscosity of at least 25 by adjusting to a pH of about 5À7 an #-caprolactam solution in which the sole reactive constituents are said lactam and water, heating the solution with agitation to a temperature from 180 to 230C. under an inert gas to effect polymerization of the said lactam until the aforesaid viscosity is attained, maintaining that viscosity constant for at least two hours by maintaining constant temperature to 2C. and a constant water vapour pressure, higher than that in the polymerization, of 1 to 50 pounds per square inch absolute, and then extruding the polymer under the same constant conditions of temperature by applying to the melt thereof an inert gas under pressure containing water having dewpoint of 90 to 95C. The relative viscosity is determined by measuring the density and reflux time of an aqueous 90% formic acid solution containing 11 gms. of the polymer per 100 ml. of the solvent at 25C. The term "pH of about 5À7" is defined as a pH of exactly 5À7 or a pH differing therefrom by an amount represented by not more than 2 milliequivalents of free acid acid a base per kilogram of lactam and may be determined using Tashiro's indicator. The examples describe the preparation of polymers suitable for moulding or spinning, which may be delustred with titanium dioxide or dyed.